New York attorney record · Judicial Dept 1
William Arthur Plapinger
New York University alumna, admitted to the New York bar in 1979, registered office in New York, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1979
- Admitted
- 47
- Years in bar
- 1463215
- NY reg #
The record in one line
William Arthur Plapinger has spent 47 years on the register since admission in 1979, one of the longest-standing active practitioners the state bar carries at 92% tenure percentile.
- 47 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 8%
- by tenure among active NY attorneys
- Law school
- New York University
What this profile tells you
Bar status & tenure
William Arthur Plapinger has carried New York bar registration 1463215 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Sullivan & Cromwell LLP, located in New York, NY (New York County), ZIP 10004. 5 other attorneys share this firm affiliation in the registry. Educational background: NEW YORK UNIVERSITY.
State context & due diligence
Across a career spanning 47 years, William Arthur Plapinger has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
William Arthur Plapinger's 47 years since a 1979 admission places this record near the far edge of the statewide tenure curve below.
47 years on the New York bar
Years since admission, all currently-active NY attorneys
47 Top 8% higher than 92% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How William compares to fellow New York University alumni
Among the 4,467 New York University graduates in the New York register, William Arthur Plapinger is longer-tenured than 99% - a school-cohort view of experience, alongside the statewide one above.
47 years vs. New York University alumni
Years since admission - 4,467 NY-registered alumni of this school
47 Top 1% higher than 99% of 4,467 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
The 1979 admission class today
Of the 3,974 attorneys admitted to the New York bar in 1979, 53% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1463215
- Year Admitted
- 1979 (47 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Jul 2026
Location & Contact
- Company
- Sullivan & Cromwell LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10004
- Phone
- (212) 558-3550
Education
NEW YORK UNIVERSITY
Status Distribution Across the New York Bar
William Arthur Plapinger's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Sullivan & Cromwell LLP
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Compare attorneys →Before you rely on this record
William Arthur Plapinger's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is William Plapinger licensed?
William Plapinger is licensed to practice law in New York.
When was William Arthur Plapinger admitted to the bar?
William Arthur Plapinger's admission to the New York bar dates back to 1979.
Where did William Arthur Plapinger go to law school?
William Arthur Plapinger attended NEW YORK UNIVERSITY.
What company does William Arthur Plapinger work for?
William Arthur Plapinger is associated with Sullivan & Cromwell LLP in New York, NY.
Is William Arthur Plapinger in good standing?
Yes, William Arthur Plapinger holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.